/* =========================================================
   Layout: containers, header, footer e grades
   ========================================================= */
.container {
    width: min(100% - 40px, var(--container));
    margin-inline: auto;
}

.narrow {
    max-width: 860px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(15, 23, 42, 0.76);
    border-bottom: 1px solid var(--color-line);
    backdrop-filter: blur(18px);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 78px;
    gap: 1.5rem;
}

.brand {
    display: inline-flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.1rem;
}

.nav-link {
    color: var(--color-muted);
    font-size: 0.94rem;
    transition: color 180ms ease;
}

.nav-link:hover,
.nav-link.is-active {
    color: var(--color-white);
}

.nav-toggle {
    display: none;
}

.section {
    padding: 96px 0;
}

.section-band {
    background: linear-gradient(90deg, rgba(41, 98, 255, 0.12), rgba(123, 63, 242, 0.12));
    border-block: 1px solid var(--color-line);
}

.section-heading {
    max-width: 780px;
    margin-bottom: 40px;
}

.hero {
    min-height: calc(100vh - 78px);
    padding: 80px 0;
    display: grid;
    align-items: center;
}

.hero-grid,
.split,
.contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.86fr);
    gap: 56px;
    align-items: center;
}

.hero-content {
    max-width: 720px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 30px;
}

.product-grid,
.three-columns,
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.solution-grid,
.content-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.site-footer {
    padding: 72px 0 26px;
    background: rgba(7, 12, 25, 0.72);
    border-top: 1px solid var(--color-line);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 36px;
}

.footer-grid h2 {
    margin-bottom: 1rem;
    font-size: 1rem;
}

.footer-grid a {
    display: block;
    margin-bottom: 0.65rem;
    color: var(--color-muted);
}

.footer-grid a:hover {
    color: var(--color-cyan);
}

.footer-logo {
    margin-bottom: 1rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--color-line);
}

.social-links {
    display: flex;
    gap: 16px;
}